The Kawasaki Ki-61 Model Hei seen in the captions was flown by Captain Shoko Fumisuke who was commander of the "Soyokaze-tai" (Breeze-squadron) of the 244 Sentai. The book "Hien Fighter Group" by Dai Nippon Kaiga includes two more photos of "88" without camouflage. According to that book the plane received the camouflage in March 1945.
The Dragon kit Golden Wing Series 5028 in 1/72 (below), offers decals for the "88" without the camouflage.
Lifelike has released decals in 1/72 and 1/48.